Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/15 and 20/45

1st number: 2 12/15, 2nd number: 20/45

42/15 + 20/45 is 146/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 45 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 15 × 3 = 45,
    42/15 = 42 × 3/15 × 3 = 126/45
  3. Likewise, for the 2nd fraction, since 45 × 1 = 45,
    20/45 = 20 × 1/45 × 1 = 20/45
  4. Add the two like fractions:
    126/45 + 20/45 = 126 + 20/45 = 146/45
  5. So, 42/15 + 20/45 = 146/45
    In mixed form: 311/45

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com